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Videosurgery and Other Miniinvasive Techniques
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Case report

Laparoscopic gastric resection with natural orifice specimen extraction for postulcer pyloric stenosis

Jan Dostalik
,
Petra Gunkova
,
Igor Gunka
,
Miloslav Mazur
,
Tomas Mrazek

Videosurgery Miniinv 2014; 9 (2): 282–285
Online publish date: 2014/03/31
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Introduction

Laparoscopic gastric surgery has well-known benefits. The advantages of this procedure in the immediate postoperative period are less pain, shorter postoperative ileus, earlier mobilization enabling faster enteral feeding, rapid recovery and excellent cosmetic results. The stress response is lower and adhesion formation is reduced. However, laparoscopically assisted techniques require the enlargement of a trocar incision, resulting in a minilaparotomy (midline, right upper quadrant) for removal of the resected specimen. The incision is also necessary to perform some steps of the operation extracorporeally. These incisions (average 6–10 cm) are much smaller than those in conventional surgery but they also present a risk of infection, wound dehiscence, pain and hernia formation, with consequent morbidity, hospital stay and increased costs [1, 2]. The incidence of surgical site infection is reported as between 0 and 11% [3]. Hernia development occurs in less than 1% of patients and it is most common in a periumbilical midline incision [3].
Surgeons started to explore the feasibility of performing abdominal surgery endoscopically using natural orifices for extraction of the specimen and performing intracorporeal anastomosis, which means the possibility to perform totally laparoscopic surgery. Moreover, the combination of laparoscopy and natural orifice specimen extraction (NOSE) facilitates the execution and increases the safety of the surgical procedure because it overcomes the limitations imposed by the current surgical technologies and instrumentation. Finally, the cosmetic advantages of NOSE over the conventional procedure are notable. Developing natural orifice translumenal endoscopic surgery (NOSE) techniques may be considered as a bridge to NOTES. This progress is also possible thanks to advances in therapeutic gastrointestinal flexible endoscopy.
There have been no reports in the international literature of gastric resection using NOSE for postulcer pyloric stenosis with the transgastric route of extraction. This report describes extraction of the specimen through the esophagus and mouth in a male patient with postulcer pyloric stenosis.

Case report

A 58-year-old patient with peptic ulcer disease was investigated for nausea and abdominal fullness. Abdominal sonography was negative and subsequent gastric fibroscopy revealed postulcer and antral stenosis. Histopathology showed chronic gastritis with no signs of malignancy.
The patient’s body mass index (BMI) was 26.7 kg/m2 and American Society of Anesthesiologists (ASA) classification was II. The patient was informed about this novel approach, associated risks, and potential complications, and signed informed consent.
Laparoscopy was performed under general anesthesia. The patient was placed in the reverse Trendelenburg position for visualization of the upper abdominal compartment, and his legs were placed in the abducted position. The operating surgeon stood between the legs and the surgical assistants stood one on each side of the patient (the first assistant on the patient’s left side and the second assistant – the camera operator – on the patient’s right side). Intracorporeal CO2 pressure was maintained at 12 mm Hg. Distribution of trocars was as follows: 10-mm port for the optics in the midline 5 cm above the umbilicus, 12-mm port in the right mesogastrium, 12-mm port in the left mesogastrium and 5-mm port in the midaxillary line in the left hypochondrium. The operation commenced with a survey of the intraabdominal cavity and the next step was adhesiolysis with the harmonic scalpel. Considerable enlargement of the stomach was present. Using intraoperative endoscopy, pyloric and antral stenosis was confirmed and the resection margin was determined. The laparoscopic grasper was used for retraction of the liver, mobilization and exposure of the stomach. Laparoscopic two-thirds gastrectomy began with mobilization of major and minor curvature of the stomach with the harmonic scalpel. The duodenum was divided using a 60-mm linear endostapler (ENDO GIA universal 60 3.5, Covidien). The stomach was divided using two 60-mm linear endostaplers (ENDO GIA universal 60 3.5, Covidien). The resected stomach was transsected longitudinally and a tubule length of 30 cm was created. The staple line suture in the residual stomach was excised. The gastroenterologist introduced the endoscope, the specimen was captured by a polypectomy snare and was extracted through the esophagus and mouth. The residual stomach was again closed using two 60-mm linear endostaplers (ENDO GIA universal 60 3.5, Covidien). Reconstruction was performed according to Roux-en-Y method using stapling technique and intracorporeal continuous suture. The sufficiency of anastomosis was confirmed by application of methylene blue solution to the nasogastric tube. The enteral feeding tube was placed behind the entero- enteroanastomosis. The abdominal cavity was flushed with antiseptic solution (povidone-iodine 1%). The drains were placed in the subhepatic area and in the left subphrenic space.
The operation was performed under perioperative antibiotic (Ampicillin/sulbactam 3 γ and metronidazole 1 γ intravenously) prophylaxis and lasted 310 min.
After surgery, the patient stayed in the intensive care unit for 10 days. The postoperative course was complicated by renal insufficiency of solitary kidney and Clostridium difficile colitis. Oral intake was initiated on postoperative day 4, when flatus passage was documented. The enteral tube was removed on postoperative day 6. The abdominal drains were removed on the 4th postoperative day.
The patient was discharged to gastroenterology outpatient care on the 15th postoperative day. Ulcer size in definitive histology was 3 cm. Microscopic appearance confirmed chronic gastritis and fibrous tissue with no signs of malignancy (Photos 1 and 2).

Discussion

Recent innovation and progress in minimally invasive surgery has evolved to another level with the development of natural orifice translumenal endoscopic surgery (NOTES, surgery without scars, incisionless surgery) and laparo-endoscopic single-site surgery (LESS) in which the surgical scar is concealed within the umbilicus. The goal is to further minimize surgical trauma by eliminating the incision through the abdominal wall [4–6]. The NOSE with the combination of standard laparoscopy and specimen extraction through a natural orifice can be considered as a bridge to NOTES. The future application of NOTES for large organs in abdominal surgery depends on the improvement of endoscopes, on the invention and development of a range of new devices for flexible endosurgery instrumentation and safe and efficient closure of natural orifices [7].
There are four potential NOSE routes: transgastric [8], transrectal, transvaginal, and transurethral/transvesical [9].
Retrieval of the colonic specimen through the anus was described for the first time by Franklin et al. [10] in 1993 using a flexible sigmoidoscope. Transrectal extraction is feasible, but carries a potential risk of infection and postoperative leakage. The risk of contamination can be minimized by thorough rectal stump washout before extraction of the specimen. Not only infectious complications but also cancer cell exfoliation, implantation and local recurrence can be eliminated by using a protective barrier or specimen bag. Understandably, this technique may not be feasible in locally advanced large and bulky tumors, in patients with anal stenosis or a small caliber rectum.
Use of the trans-vaginal route is not associated with any increased risk of postoperative leakage and infection and complications associated with incision and closure of the posterior vaginal wall are extremely rare. Transvaginal retrieval of the specimen can also avoid the potential damage of the anal sphincter and the potential risk of port-site metastasis. But the use of this route is limited to female patients. The vagina as an extraction route was first reported following laparoscopic cholecystectomy in 1993 [11] and laparoscopic nephrectomy in 2002 [12]. Yuan et al. [13] described transvaginal extraction after radical cystectomy and bilateral nephroureterectomy in 2007. Korean authors described transvaginal specimen extraction in four patients with gastric pathology (early gastric cancer) [14]. Trans-vaginal endoscopic partial gastrectomy was reported in a porcine model in 2008 [15]. Using the hybrid transvaginal minilaparoscopic-assisted natural orifice surgery (MA-NOS) in bariatric surgical treatment is also both feasible and safe [16]. According to Lacy et al. [16], with available instruments and technology, a pure nonhybrid NOTES transvaginal approach of upper abdominal organs is extremely difficult. The MA-NOS is a safe potential option to avoid abdominal incisions and related complications for the laparoscopic resection of large intra-abdominal organs.
Several studies have confirmed the technical feasibility of transgastric diagnostic and therapeutic procedures such as liver biopsy, gastrojejunostomy [17], tubal ligation [18] and cholecystectomy [19]. Some of these studies were performed on porcine models. Kantsevoy et al. [20] reported transgastric splenectomy on a porcine model in 2006.
Given the large volume of gastric specimens, according to some authors the use of the transgastric route for stomach specimen extraction is not feasible [14]. Our previous experience with transgastric specimen extraction and construction of the intracorporeal anastomosis allowed us to proceed to a totally laparoscopic gastric resection. This innovative technique without any minilaparotomy is also successfully used in bariatric surgery in our department, when the gastric sleeve resection specimen is removed through the transgastric route. Due to the bulkiness of the specimen after gastrectomy or subtotal gastrectomy for cancer, we consider this technique appropriate for benign diseases of the stomach. Adjustment of a bulky gastric specimen to the tubular shape prevents damage to the oesophageal wall during extraction.

Conclusions

Gastric resection using NOSE may be a feasible and alternative operative procedure for patients with postulcer stenosis. The main disadvantage of this procedure is increase in cost because of additional stapler cartridges used for repeated gastric closure and specimen tubulization. However, the combination of standard laparoscopy and specimen extraction through a natural orifice can significantly decrease wound-related complications. This combined method allows controlled implementation of NOSE techniques in clinical practice, providing a stepwise progression to the pure NOTES approach. But we must realize that NOSE procedures in gastric surgery are still in development and it is difficult to compare safety and efficacy of using these approaches with standard laparoscopic interventions.

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Received: 6.10.2013, accepted: 5.11.2013.
Copyright: © 2014 Fundacja Videochirurgii This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) License (http://creativecommons.org/licenses/by-nc-sa/4.0/), allowing third parties to copy and redistribute the material in any medium or format and to remix, transform, and build upon the material, provided the original work is properly cited and states its license.
  
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